Abstract: This field electron emission device comprises a linear conductor wire having concave/convex on its surface and an electron emitter having electron conductivity formed on the concave/convex surface of the conductor wire. Preferably, the concave/convex is formed by a channeling performed to the surface of the conductor wire. Preferably, the electron emitter is composed of microscopic linear materials composed of selected one or combination of carbon nano-tube, carbon nano-wall, carbon fiber, graphite fiber, amorphous carbon fiber and diamond fiber.

Abstract: A lighting device of the present invention has a wire-shaped cathode provided along an axial direction, a phosphor-coated anode that opposes to the wire-shaped cathode in the axial direction and a vacuum sealing tube that vacuum-seals these cathode and anode, wherein the wire-shaped cathode has a wire and a carbon film provided on the entire circumference of this wire, and the phosphor-coated anode has an anode section and a phosphor section provided on this anode section.

Abstract: A QCM sensor including a sensor device, the sensor device having a crystal substrate, on both of front and rear surfaces of which a pair of electrodes are disposed so as to oppose with each other and the QCM sensor detecting and quantitatively analyzing components of a sample from either a variation in a fundamental resonant frequency or a variation in an impedance when a surface of one of the pair of electrodes is immersed into either a sample gas or a sample solution. The sensor device is arranged in a multi-channel structure such that four mutually opposing electrodes (11A through 14A, 12B through 14B) are disposed on both front and rear surfaces of the crystal substrate 10, each electrode being arranged to enable a fixation of a receptor which is different for each component of a sample to be detected and quantitatively analyzed, whereby the QCM sensor detects and quantitatively analyzes once the components of one sample different for different electrodes.

Abstract: The invention relates to a solid-electrolyte fuel cell including an anode that is intended to be in contact with a fuel; a cathode that is intended to be in contact with an oxidant for oxidizing the fuel; and a first oxygen-ion-conductive (electrolyte) film and a second oxygen-ion conductive film that are stuck together, are connected with the anode and the cathode, and are arranged in descending order toward the anode, by activation energy of oxygen ion. According to the fuel cell, it becomes possible to increase the open-circuit voltage.

Abstract: In a method for processing nitrogen oxide, nitrogen oxide is reacted with hydrogen azide. Oxygen and/or plasma is utilized to accelerate the reaction between nitrogen oxide and hydrogen azide. An apparatus for use in performing the nitrogen oxide processing method includes a reaction case in which an aqueous solution containing hydrogen azide is provided. Nitrogen oxide containing gas is introduced into the reaction case for reacting nitrogen oxide with hydrogen azide to reduce nitrogen oxide. A plasma generating unit may be provided for feeding plasma into the nitrogen oxide contained gas.

Abstract: There is provided a method of making a non-linear voltage-dependent resistor containing a ZnO element including zinc oxide as its major component by forming or coating a layer of high insulation material on the element. The layer is formed due to a vapor-solid reaction in the atmosphere of a vaporizable molecular compound containing Sb.sub.2 O.sub.3, Bi.sub.2 O.sub.4 or SiO.sub.2 at a sintering temperature. Preferably, the layer is formed due to a vapor-solid reaction in the atmosphere of a vaporization retarding compound containing ZnO, or SiO.sub.2 in addition to the vaporizable molecular compound at a sintering temperature within a sintering vessel.

Abstract: A non-linear voltage dependent resistor having a non-ohmic resistance element and an electrically insulating coating formed thereon, obtained by firing a formed element containing zinc oxide and a coating material applied thereon, at a temperature between 900.degree. and 1,400.degree. C, the coating material including a mixture of ZnO, SiO.sub.2, Bi.sub.2 O.sub.3 and Sb.sub.2 O.sub.3. There is formed a firm joint between the resistance element and the insulating coating and the insulating coating has a composition structure wherein fine constituent grains are closely packed whereby the occurrence of a flashover is prevented.